Building a Profession from the Ground Up: A Longitudinal Study of Teacher Professional Development and Pedagog-ical Innovation in Papuan Private Schools

Abstract

Background. Teacher quality is the strongest school-based influence on student success. Building professional excellence in remote, culturally diverse regions such as Papua, Indone-sia, is nonetheless hard. Private school teachers can be isolated, and long-term research on teacher professional development (TPD) in this setting is scarce.

Objective. To investigate the impact of a sustained, collaborative TPD program on the peda-gogical knowledge, self-efficacy and classroom practice of private school teachers in Papua.

Methods. A three-year (2021–2023) concurrent mixed-methods longitudinal study fol-lowed 50 teachers from five private schools in urban, semi-rural and remote highland Papua. The program centered on student-centered learning and culturally responsive pedagogy. Annual quantitative data came from the Teacher Pedagogical Knowledge Test (TPKT), the Teacher Self-Efficacy Scale (TSES) and a Classroom Observation Protocol, and qualitative data came from interviews, journals and focus groups with Professional Learning Communi-ties (PLCs). Analyses were repeated measures ANOVA and thematic analysis.

Results. Mean TPKT scores rose from 48.5 (SD = 11.2) to 79.8 (SD = 8.5) (F(1.78, 87.2) = 157.2, p < 0.001, Greenhouse-Geisser corrected), and self-efficacy rose significantly (F(1.81, 88.7) = 112.9, p < 0.001). Classroom practice shifted markedly. It moved from teacher-centered to student-centered. Three themes emerged: (1) “From Transmission to Facilita-tion: A Pedagogical Awakening,” (2) “The Power of the Collective,” and (3) “Navigating the Cultural Interface.”

Conclusion. In this single cohort, sustained, collaborative, context-specific TPD was associ-ated with large gains in teacher knowledge, self-efficacy and classroom practice. The findings favor long-term models built on peer collaboration and cultural relevance over isolated workshops.